A double-blind, placebo-controlled, dose-response pilot study evaluating intradiscal etanercept in patients with chronic discogenic low back pain or lumbosacral radiculopathy.
Cohen SP, Wenzell D, Hurley RW, Kurihara C, Buckenmaier CC 3rd, Griffith S, Larkin TM, Dahl E, Morlando BJ. Anesthesiology. 2007 Jul; 107(1):99-105.